• Saguaro Blooms Upclose

    Saguaro

    National Park Arizona

There are park alerts in effect.
show Alerts »
  • Deer Head Fire Burning in the Rincon Moutains

    A lightning-ignited fire is burning near Spud Rock Springs. Backcountry visitors are encouraged to check with the Rincon Mountain Visitor Center for current conditions and updates on potential trail closures. More »

Mammals


Did You Know?

Gila Monster

Gila monsters are one of two venomous lizards in the world. The other is the similar Mexican beaded lizard. Gila monster venom evolved as a defensive rather than offensive weapon.